(Topic ID: 259165)

System 11 loud hum when CPU lamps are on

By debaser

4 years ago


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#6 4 years ago

I’m fighting this on a high speed. There are several threads but none of the solutions are working. New power board. Switched sound board. Let sound board hang free. All screws installed in all boards.

Following this thread as I’m out of ideas.

#7 4 years ago
Quoted from MJW:

I’m fighting this on a high speed. There are several threads but none of the solutions are working. New power board. Switched sound board. Let sound board hang free. All screws installed in all boards.
Following this thread as I’m out of ideas.

I did not look at MPU at all. I have a spare so I’ll switch that out.

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